Question

small lines on watch some lines on what some lines on what
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Answer 1

Answer:

Clock is a time keeping device.

This device lets us know the time.

The clock is one of the oldest human inventions, meeting the need to measure intervals of time shorter than the natural units: the day, the lunar month, and the year.

There are many types of clocks.

The earliest object similar to a clock was a sundial.

The other types are pendulum clock, Candle clock, water clock.

Today everyone uses the digital clock or analog clocks.